The majority of Dog Ear books are printed on-demand in response to orders in quantities as little as one at a time. Dog Ear can also print your book in a traditional offset manner,which dramatically reduces your per-unit cost. However, to achieve order quantities start at 2,000 units for such reduced printing prices.
Chronic respiratory diseases. WHO/Marko Kokic. Chronic respiratory diseases (CRDs) are diseases of the airways and other structures of the lung. Some of the most common are chronic obstructive pulmonary disease (COPD), asthma, occupational lung diseases and pulmonary hypertension.
Chronic obstructive pulmonary disease (COPD) is the name for a collection of lung diseases, including chronic bronchitis, emphysema and chronic obstructive airways disease. People with COPD have trouble breathing in and out, due to long-term damage to the lungs, usually because of smoking.